I have been writing SQL for over 10 years now. I am extremely proficient at it and have experience working in SQL Server, Oracle, MySQL, PostgreSQL, etc. While there are multiple standards out there, they seem to be more suggestions than standards. When you start talking about column types and stored procedures, there's almost no consistency across the board.
I wonder if someone ever considered defining a new querying language. I recently played around with some ideas. Here are some examples: https://gist.github.com/jehugaleahsa/03888d13ef2745cb67d0. Of course, this just covers the most obvious DML. This syntax would make it easier to support auto-completion, give more control over the temp table generation, make the join syntax easier, make working with grouped data easier and make sub-expressions/calculations easier to build up, just to name a few. I especially like it because it could very easily be extended to support some noSQL databases, as well. Imagine what a committee could come up with given more time!
My question is whether any effort has been put into defining a different querying language, supported by the different providers. I recognize that SQL is "good enough" and that defining and implementing a new standard would be a monumental undertaking. I know there were a lot of SQL standards proposed over the years. I just wonder if a non-"SQL" standard ever was proposed and whether it made progress or just fizzled out.